| Ovidius: Blood for Love: Act III P3 | r135503 | 2026-05-09 |
| Ovine Replica | r61245 | 2026-05-15 |
| Ovine Replica | r101788 | 2026-04-21 |
| Ovine Replica (Demo Ver.) | r66297 | 2026-04-21 |
| Ovulating Maiden v0.20b | r114473 | 2026-05-09 |
| Owaranai Natsu o kimi to ~Endless Summer~ ver. 2.10 | r22954 | 2026-05-05 |
| Owari Yuki | r81711 | 2026-05-09 |
| Owari naki Maid-tachi no Yoru - Download Edition | r65974 | 2026-05-12 |
| Owari no Kane ga Naru Mae ni - Chapter 2 | r111614 | 2026-05-15 |
| Owari no Kane ga Naru Mae ni - Chapter 3 | r129921 | 2026-05-09 |
| Owari no Seraph: Unmei no Hajimari - Download Edition | r69447 | 2026-05-07 |
| Owari no Seraph: Unmei no Hajimari - Physical Edition | r43364 | 2026-05-05 |
| Owl's Tale | r140327 | 2026-05-08 |
| Own My God | r82180 | 2026-05-09 |
| Owner | r61375 | 2026-05-07 |
| Oxidated Heart v1.0 | r107049 | 2026-04-21 |
| Oxygenerator | r106783 | 2026-05-07 |
| Oyabake! | r82154 | 2026-04-21 |
| Oyabake! 2 | r82970 | 2026-05-14 |
| Oyako Donburi 3 DVDPG Akira Hen | r20540 | 2026-05-07 |
| Oyako Donburi wa Ikka Danran no Mae ni H na Oyako wa Suki Desu ga? | r22777 | 2026-05-13 |
| Oyako Kissa ~Ryoujoku Maid Café ni Youkoso~ | r13501 | 2026-05-06 |
| Oyako Koukan ~Watashi no Oshiri ni Shimitsuite Iku Osu no Nioi~ DVDPG | r36525 | 2026-05-09 |
| Oyako Mix Ijiri ~Mucchiri Haha to Binyuu na Musume no Inniku Kaihatsu - Package Edition | r33030 | 2026-05-10 |
| Oyako Mix Ijiri ~Mucchiri Haha to Binyuu na Musume no Inniku Kaihatsu - Trial Edition | r34177 | 2026-05-10 |
| Oyako Neburi ~Sasou Hitozuma Dakaretai Oyako~ Download Edition | r16777 | 2026-05-05 |
| Oyako Ninjutsu Kunoichi PonPon!! | r116233 | 2026-04-21 |
| Oyako Rankan | r121392 | 2026-05-09 |
| Oyako Rankan | r116419 | 2026-05-09 |
| Oyako Rankan | r116708 | 2026-05-07 |
| Oyako Rankan - Prologue Patch | r43225 | 2026-05-09 |
| Oyako Rondo | r22479 | 2026-05-10 |
| Oyako SM ~Onegai! Mama o Choukyou Shite!~ Package Edition | r65410 | 2026-05-11 |
| Oyako Saiin Chiiku ~ Konna Ore ni Uzuite Modaero! | r42222 | 2026-05-15 |
| Oyako Saiin Chiiku ~ Konna Ore ni Uzuite Modaero! | r54564 | 2026-04-21 |
| Oyako Saiin Chiiku ~ Konna Ore ni Uzuite Modaero! - Package Edition | r12477 | 2026-05-07 |
| Oyako Samba | r42044 | 2026-05-11 |
| Oyako to Misshitsu ~Sex Shinai to Derarenai Heya de Hankouki no Musume to Ecchi Suru Live2D Osawari SLG~ | r112796 | 2026-05-15 |
| Oyako x Shuffle! ~Natsuyasumi, W Oyako no Icha Icha Houimou~ | r138358 | 2026-04-21 |
| Oyatsu no Jikan - DVDPG | r11395 | 2026-05-10 |
| Oz+ / Shall we date? | r45694 | 2026-04-21 |
| Ozmafija | r64004 | 2026-05-16 |
| Ozone Ashes | r105434 | 2026-05-14 |
| Ozone Ashes | r144135 | 2026-05-14 |
| Où est Liberty? | r110824 | 2026-04-21 |
| O・SHI・KA・KE 催眠術師 ～囚われの淫欲マリオネット～ パッケージ版 | r54963 | 2026-04-21 |
| O＊G＊A 鬼ごっこロワイアル ハンターは孤島（フィールド）で恋をする 通常版 | r25081 | 2026-04-21 |
| o3 | r40807 | 2026-05-16 |
| ocean waves | r103239 | 2026-04-21 |
| of all there is - Demo | r53699 | 2026-05-11 |